Finding the Fourth Proportional to 186,340.04, 257,141.59 and 105,766.10

Step by Step Solution

1. Step 1: Write the proportion equation
   186,340.04 : 257,141.59 = 105,766.10 : x
2. Step 2: Convert to fraction form
   186,340.04/257,141.59 = 105,766.10/x
3. Step 3: Cross multiply
   186,340.04x = 257,141.59 × 105,766.10
4. Step 4: Simplify right side
   186,340.04x = 27,196,861,307.56
5. Step 5: Solve for x
   x = 27,196,861,307.56/186,340.04
6. Step 6: Final answer
   x = 145,952.86